Power washing can be damaging if the pressure isn't controlled properly. Shingles can ripped right off the house or can be cracked or loosened. Water can be driven into the wall cavity. Caulking can be ripped off around windows, etc.. Used correctly, they can be great tools.
Mold on the siding and paint peeling off after only 4 years tells me that possibly the prep for the paint job wasn't done properly and possibly the right paint, ie. with mold inhibitors was not used....or you could have a large amount of moisture going thru your walls from inside to outside. Yours are some symptoms of this. vapour barriers are supposed to help prevent this….do you have a vapour barrier in your house. If you don’t, don’t panic. A vapour barrier can be created by painting your walls and ceilings with a vapour barrier type paint. I would recommend a latex vapour barrier, primer sealer. There is also the possibility of this being cuased by moisture getting behind the shingles from the outside but this doesn’t sound like it here.
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Bart Blainey, B.E.R.
Consultant/Journeyman Carpenter
Building Envelope Specialist
Master Renovator
provip@prodeck.org
http://www.prodeck.org
Barton Blainey (provip) specifically assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information or process disclosed. The above further expressly advises that any use of or reliance upon the information and or opinion disclosed is at your risk .
_________________________
Bart Blainey, B.E.R.
Consultant/Journeyman Carpenter
Building Envelope Specialist
Master Renovator
provip@prodeck.org
http://www.prodeck.orgBarton Blainey (provip) specifically assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information or process disclosed. The above further expressly advises that any use of or reliance upon the information and or opinion disclosed is at your risk .
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